pictex2 – Adds relative coordinates and improves the \plot command

Adds two user com­mands to stan­dard
PiCTeX. One com­mand uses rel­a­tive
co­or­di­nates, thus elim­i­nat­ing the need to cal­cu­late the co­or­di­nate
of ev­ery point man­u­ally as in stan­dard PiCTeX. The other com­mand
mod­i­fies \plot to use a rule in­stead of dots if the line
seg­ment is hor­i­zon­tal or ver­ti­cal.